Does Audi P1137 Trouble Code Affect Fuel Consumption?

[AlinaFitz]

Audi P1137 trouble code affects fuel consumption. The P1137 trouble code means long-term fuel trim. Symptoms: Fuel trim refers to the electronic control unit (ECU) controlling fuel delivery by increasing or decreasing the injector opening time to achieve the optimal air-fuel ratio (14.7:1 air to gasoline mass ratio). A too-rich air-fuel ratio means excessive fuel delivery, while a too-lean air-fuel ratio means insufficient fuel delivery. Causes: These include air leaks after the mass air flow (MAF) sensor, PCV system leaks, exhaust leaks near or before the oxygen sensor, clogged fuel injectors or other fuel system faults, EGR system leaks, or a contaminated MAF sensor (causing the ECU to underestimate airflow).

[LaDeclan]

I've repaired quite a few Audi vehicles and encountered the P1137 trouble code. This code typically indicates the engine's air-fuel mixture is too lean, meaning there's more air than fuel. Does it affect fuel consumption? Absolutely! Because this causes the ECU to desperately inject more fuel to compensate, resulting in a noticeable spike in fuel consumption. You might even feel the car guzzling gas faster during city driving. Common causes include faulty sensors, unstable oxygen sensor signals, or vacuum line leaks. If left untreated, it could damage other components and lead to chronically high fuel consumption. My advice: as soon as this issue appears, use diagnostic tools to pinpoint the exact location, with special attention to the intake system and sensor connectors. Early repair means early peace of mind, saving both fuel and money. I've seen many car owners' fuel consumption drop from 10L/100km back to 7L/100km after repairs – what a dramatic difference!

[LucilleDella]

As an Audi owner, my car also threw a P1137 trouble code last year, and the fuel consumption was noticeably higher than usual. Previously, a full tank could get me around 600 kilometers, but now the low fuel warning comes on just after 500 kilometers, which is really frustrating. I looked it up and found that this fault occurs mainly because the ECU detects an imbalanced air-fuel ratio that's too lean, causing it to inject more fuel automatically, resulting in higher fuel consumption and reduced power. From my experience, it's best not to ignore it—delaying repairs can not only increase fuel consumption by about 5% but may also worsen emissions. Later, I went to the dealership and replaced an oxygen sensor, which immediately fixed the issue, bringing fuel consumption back to normal levels. Experienced drivers know that letting small faults accumulate can lead to bigger problems—spending a few hundred bucks on repairs is far better than wasting hundreds more on extra fuel. Remember, maintaining good driving habits can also help prevent such faults from recurring.

[Clyde]

P1137 is a common fault code in Audi vehicles, indicating a lean fuel mixture. This definitely affects fuel consumption! To maintain proper combustion, the ECU increases fuel injection. Guess what? Fuel consumption immediately rises. As a car enthusiast, I've found the main causes are likely vacuum hose leaks or aging sensors, which disrupt the air-fuel ratio. A 5-10% increase in fuel consumption is no small matter - my own Audi was burning nearly 1 liter more per 100km before repair. By the way, this also affects exhaust emissions, and prolonged neglect may damage the catalytic converter, potentially doubling repair costs. Address it promptly - have a reliable technician perform a computer diagnosis. Usually, replacing a single component will solve the issue.